<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8" />
    <title>尚硅谷会员登录页面</title>
    <link type="text/css" rel="stylesheet" href="../../static/css/style.css" />
    <script type="text/javascript" src="../../static/script/jquery-1.7.2.js"></script>
    <script type="text/javascript">
$(function () {
  $("#sub_btn").click(function () {
    var username = $("#username").val();
    var password =$("#password").val();
    if (username==""){
      alert("请输入您的用户名");
      return false;
    }
    if (password==""){
      alert("请输入您的密码");
      return false;
    }
  });
});
      
    </script>
  </head>
  <body>
    <div id="login_header">
      <a href="../../index.html">
        <img class="logo_img" alt="" src="../../static/img/logo.gif" />
      </a>
    </div>

    <div class="login_banner">
      <div id="l_content">
        <span class="login_word">欢迎登录</span>
      </div>

      <div id="content">
        <div class="login_form">
          <div class="login_box">
            <div class="tit">
              <h1>尚硅谷会员</h1>
            </div>
            <div class="msg_cont">
              <b></b>
              <span class="errorMsg">请输入用户名和密码</span>
            </div>
            <div class="form">
              <form action="login_success.html">
                <label>用户名称：</label>
                <input
                  class="itxt"
                  type="text"
                  placeholder="请输入用户名"
                  autocomplete="off"
                  tabindex="1"
                  name="username"
                  id="username"
                />
                <br />
                <br />
                <label>用户密码：</label>
                <input
                  class="itxt"
                  type="password"
                  placeholder="请输入密码"
                  autocomplete="off"
                  tabindex="1"
                  name="password"
                  id="password"
                />
                <br />
                <br />
                <input type="submit" value="登录" id="sub_btn" />
              </form>
              <div class="tit">
                <a href="regist.html">立即注册</a>
              </div>
            </div>
          </div>
        </div>
      </div>
    </div>
    <div id="bottom">
      <span>
        尚硅谷书城.Copyright &copy;2015
      </span>
    </div>
  </body>
</html>
